retired

OpenAI: GPT-5.1-Codex

openai/gpt-5-1-codex

Prices

Input: $1.25 per 1M tokens
low
Input (cached read, priority): $0.25 per 1M tokens
low
Input (cached read): $0.125 per 1M tokens
low
Input (priority): $2.50 per 1M tokens
low
Output: $10.00 per 1M tokens
low
Output (priority): $20.00 per 1M tokens
low
Web search (context size: high): $0.01 per query
low
Web search (context size: low): $0.01 per query
low
Web search (context size: medium): $0.01 per query
low

Also available on

The same model, sold by someone else. The price above is the maker's own.

12 sales channels for this model.
Channel	What	Price
Microsoft Azure	Input	$1.25 per 1M tokens
	Input (cached read, priority)	$0.25 per 1M tokens
	Input (cached read)	$0.125 per 1M tokens
	Input (cached read) (region: eu)	$0.1375 per 1M tokens
	Input (cached read) (region: global)	$0.125 per 1M tokens
	Input (cached read) (region: us)	$0.1375 per 1M tokens
	Input (priority)	$2.50 per 1M tokens
	Input (region: eu)	$1.38 per 1M tokens
	Input (region: global)	$1.25 per 1M tokens
	Input (region: us)	$1.38 per 1M tokens
	Output	$10.00 per 1M tokens
	Output (priority)	$20.00 per 1M tokens
	Output (region: eu)	$11.00 per 1M tokens
	Output (region: global)	$10.00 per 1M tokens
	Output (region: us)	$11.00 per 1M tokens
Microsoft Azure · azure-ai	Input	$1.25 per 1M tokens
	Input (cached read)	$0.125 per 1M tokens
	Output	$10.00 per 1M tokens
OpenRouter · openai	Input	$1.25 per 1M tokens
	Input (cached read)	$0.13 per 1M tokens
	Output	$10.00 per 1M tokens
	Query	$0.01 per query
OpenRouter	Input	$1.25 per 1M tokens
	Input (cached read)	$0.13 per 1M tokens
	Output	$10.00 per 1M tokens
Other · impossibl	Input	$1.25 per 1M tokens
	Input (cached read)	$0.125 per 1M tokens
	Output	$10.00 per 1M tokens
Other · kilo	Input	$1.25 per 1M tokens
	Input (cached read)	$0.13 per 1M tokens
	Output	$10.00 per 1M tokens
Other · nano-gpt	Input	$1.25 per 1M tokens
	Input (cached read)	$0.125 per 1M tokens
	Output	$10.00 per 1M tokens
Other · openrouter	Input	$1.25 per 1M tokens
	Input (cached read)	$0.13 per 1M tokens
	Output	$10.00 per 1M tokens
Other · orcarouter	Input	$1.25 per 1M tokens
	Input (cached read)	$0.125 per 1M tokens
	Output	$10.00 per 1M tokens
Other · poe	Input	$1.10 per 1M tokens
	Input (cached read)	$0.11 per 1M tokens
	Output	$9.00 per 1M tokens
Other · vercel	Input	$1.25 per 1M tokens
	Input (cached read)	$0.13 per 1M tokens
	Output	$10.00 per 1M tokens
Other · zenmux	Input	$1.25 per 1M tokens
	Input (cached read)	$0.12 per 1M tokens
	Output	$10.00 per 1M tokens

Specifications

Provider: openai
Context window: 400,000
Max output tokens: 128,000
Open weights: no
Released: 11/13/2025
Retires: 07/23/2026
First seen by this tracker: 09/14/2026

Price history

No price of this model has changed since we started tracking it.

Input (cached read): 0.125 per 1M tokens, unchanged since 09/14/2026
Input (cached read, priority): 0.25 per 1M tokens, unchanged since 09/14/2026
Input: 1.25 per 1M tokens, unchanged since 09/14/2026
Input (priority): 2.5 per 1M tokens, unchanged since 09/14/2026
Output: 10 per 1M tokens, unchanged since 09/14/2026
Output (priority): 20 per 1M tokens, unchanged since 09/14/2026
Web search (context size: high): 0.01 per query, unchanged since 09/14/2026
Web search (context size: low): 0.01 per query, unchanged since 09/14/2026
Web search (context size: medium): 0.01 per query, unchanged since 09/14/2026